21000663500

素因数分解:

$2^2\times 5^3\times {\mathrm{37}}^1\times {\mathrm{1135171}}^1$

素因数の和:1135227

約数の個数: 48

約数和(自身を含む): 47105097312

約数和(自身を除く): 26104433812

約数列:

[1, 2, 4, 5, 10, 20, 25, 37, 50, 74, 100, 125, 148, 185, 250, 370, 500, 740, 925, 1850, 3700, 4625, 9250, 18500, 1135171, 2270342, 4540684, 5675855, 11351710, 22703420, 28379275, 42001327, 56758550, 84002654, 113517100, 141896375, 168005308, 210006635, 283792750, 420013270, 567585500, 840026540, 1050033175, 2100066350, 4200132700, 5250165875, 10500331750, 21000663500]

約数ペア:

[(1, 21000663500), (2, 10500331750), (4, 5250165875), (5, 4200132700), (10, 2100066350), (20, 1050033175), (25, 840026540), (37, 567585500), (50, 420013270), (74, 283792750), (100, 210006635), (125, 168005308), (148, 141896375), (185, 113517100), (250, 84002654), (370, 56758550), (500, 42001327), (740, 28379275), (925, 22703420), (1850, 11351710), (3700, 5675855), (4625, 4540684), (9250, 2270342), (18500, 1135171)]